In a stunning development in the Trump-Russia investigation, the FBI raided the offices of Michael Cohen today, reportsThe New York Times.

Cohen — President Trump’s longtime friend and personal lawyer — was previously implicated in a possible campaign finance violation when it was revealed that he paid $130,000 in hush money to adult film star Stormy Daniels to cover up an alleged extramarital affair between her and Trump. The agents also snatched up emails, tax documents, and business records.

Cohen’s office is located in Trump Tower, meaning the FBI has raided the flagship establishment of the Trump empire.

The FBI seized numerous documents during the raid, including some related to the Stormy Daniels payoff. The search warrant was obtained after special counsel Robert Mueller sent a referral to federal prosecutors. The Times reports that the raid is most likely due to information uncovered by Mueller during the course of his investigation.

“The seized records include communications between Mr. Trump and Mr. Cohen, which would likely require a special team of agents to review because conversations between lawyers and clients are protected from scrutiny in most instances,” writes Matt Apuzzo of The Times.

It’s as yet unclear what the exact objective of the raid was, but it’s certainly very bad news for Cohen and quite possibly President Trump. Once again Mueller has sent a strong signal that he will follow the evidence wherever it leads. Each new development seems to indicate where the investigation will end up: right on the doorsteps of the White House.